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        <h3 id="策略模式"><a href="#策略模式" class="headerlink" title="策略模式"></a>策略模式</h3><p>这个模式和bridge 模式非常像，如果说区别可能就是bridge强调的是扩展性而stragtegy强调使用方法</p>
<h3 id="策略模式类图"><a href="#策略模式类图" class="headerlink" title="策略模式类图"></a>策略模式类图</h3><p><img src="blogimg/GAF/10.png" alt=""></p>
<h3 id="策略模式例子"><a href="#策略模式例子" class="headerlink" title="策略模式例子"></a>策略模式例子</h3><h4 id="context-策略的使用者"><a href="#context-策略的使用者" class="headerlink" title="context 策略的使用者"></a>context 策略的使用者</h4><figure class="highlight java"><table><tr><td class="gutter"><pre><span class="line">1</span><br><span class="line">2</span><br><span class="line">3</span><br><span class="line">4</span><br><span class="line">5</span><br><span class="line">6</span><br><span class="line">7</span><br><span class="line">8</span><br><span class="line">9</span><br><span class="line">10</span><br><span class="line">11</span><br><span class="line">12</span><br><span class="line">13</span><br><span class="line">14</span><br><span class="line">15</span><br><span class="line">16</span><br><span class="line">17</span><br><span class="line">18</span><br><span class="line">19</span><br><span class="line">20</span><br><span class="line">21</span><br><span class="line">22</span><br><span class="line">23</span><br><span class="line">24</span><br><span class="line">25</span><br><span class="line">26</span><br><span class="line">27</span><br><span class="line">28</span><br><span class="line">29</span><br><span class="line">30</span><br><span class="line">31</span><br><span class="line">32</span><br><span class="line">33</span><br><span class="line">34</span><br><span class="line">35</span><br><span class="line">36</span><br><span class="line">37</span><br><span class="line">38</span><br><span class="line">39</span><br></pre></td><td class="code"><pre><span class="line"><span class="keyword">package</span> org.kys.Gaf.strategy;</span><br><span class="line"></span><br><span class="line"><span class="keyword">public</span> <span class="class"><span class="keyword">class</span> <span class="title">PlayerContext</span> </span>&#123;</span><br><span class="line">    <span class="keyword">private</span> String name;</span><br><span class="line">    <span class="keyword">private</span> Strategy strategy;</span><br><span class="line">    <span class="keyword">private</span> <span class="keyword">int</span> wincount=<span class="number">0</span>;</span><br><span class="line">    <span class="keyword">private</span> <span class="keyword">int</span> losecount=<span class="number">0</span>;</span><br><span class="line">    <span class="keyword">private</span> <span class="keyword">int</span> gamecount=<span class="number">0</span>;</span><br><span class="line"></span><br><span class="line">    <span class="function"><span class="keyword">public</span> <span class="title">PlayerContext</span><span class="params">(String name, Strategy strategy)</span> </span>&#123;</span><br><span class="line">        <span class="keyword">this</span>.name = name;</span><br><span class="line">        <span class="keyword">this</span>.strategy = strategy;</span><br><span class="line">    &#125;</span><br><span class="line"></span><br><span class="line">    <span class="function"><span class="keyword">public</span> Hand <span class="title">nextHand</span><span class="params">()</span></span>&#123;</span><br><span class="line">        <span class="keyword">return</span> strategy.nextHand();</span><br><span class="line">    &#125;</span><br><span class="line"></span><br><span class="line">    <span class="function"><span class="keyword">public</span> <span class="keyword">void</span> <span class="title">win</span><span class="params">()</span></span>&#123;</span><br><span class="line">        strategy.study(<span class="keyword">true</span>);</span><br><span class="line">        gamecount++;</span><br><span class="line">        wincount++;</span><br><span class="line">    &#125;</span><br><span class="line">    <span class="function"><span class="keyword">public</span> <span class="keyword">void</span> <span class="title">lose</span><span class="params">()</span></span>&#123;</span><br><span class="line">        strategy.study(<span class="keyword">false</span>);</span><br><span class="line">        gamecount++;</span><br><span class="line">        losecount++;</span><br><span class="line">    &#125;</span><br><span class="line"></span><br><span class="line">    <span class="function"><span class="keyword">public</span> <span class="keyword">void</span> <span class="title">even</span><span class="params">()</span></span>&#123;</span><br><span class="line">        gamecount++;</span><br><span class="line">    &#125;</span><br><span class="line">    <span class="function"><span class="keyword">public</span> <span class="keyword">double</span> <span class="title">winRate</span><span class="params">()</span></span>&#123;</span><br><span class="line">        <span class="keyword">return</span> (<span class="keyword">double</span>)wincount/(<span class="keyword">double</span>) gamecount;</span><br><span class="line">    &#125;</span><br><span class="line">    <span class="function"><span class="keyword">public</span> String <span class="title">getHandName</span><span class="params">()</span></span>&#123;</span><br><span class="line">        <span class="keyword">return</span> strategy.getHandName();</span><br><span class="line">    &#125;</span><br><span class="line">&#125;</span><br></pre></td></tr></table></figure>
<h4 id="strategy-定义的策略接口"><a href="#strategy-定义的策略接口" class="headerlink" title="strategy 定义的策略接口"></a>strategy 定义的策略接口</h4><figure class="highlight java"><table><tr><td class="gutter"><pre><span class="line">1</span><br><span class="line">2</span><br><span class="line">3</span><br><span class="line">4</span><br><span class="line">5</span><br><span class="line">6</span><br><span class="line">7</span><br></pre></td><td class="code"><pre><span class="line"><span class="keyword">package</span> org.kys.Gaf.strategy;</span><br><span class="line"></span><br><span class="line"><span class="keyword">public</span> <span class="class"><span class="keyword">interface</span> <span class="title">Strategy</span> </span>&#123;</span><br><span class="line">    <span class="function"><span class="keyword">void</span> <span class="title">study</span><span class="params">(<span class="keyword">boolean</span> win)</span></span>;</span><br><span class="line">    <span class="function">Hand <span class="title">nextHand</span><span class="params">()</span></span>;</span><br><span class="line">    <span class="function">String <span class="title">getHandName</span><span class="params">()</span></span>;</span><br><span class="line">&#125;</span><br></pre></td></tr></table></figure>
<h4 id="策略接口的实现类"><a href="#策略接口的实现类" class="headerlink" title="策略接口的实现类"></a>策略接口的实现类</h4><figure class="highlight java"><table><tr><td class="gutter"><pre><span class="line">1</span><br><span class="line">2</span><br><span class="line">3</span><br><span class="line">4</span><br><span class="line">5</span><br><span class="line">6</span><br><span class="line">7</span><br><span class="line">8</span><br><span class="line">9</span><br><span class="line">10</span><br><span class="line">11</span><br><span class="line">12</span><br><span class="line">13</span><br><span class="line">14</span><br><span class="line">15</span><br><span class="line">16</span><br><span class="line">17</span><br><span class="line">18</span><br><span class="line">19</span><br><span class="line">20</span><br><span class="line">21</span><br><span class="line">22</span><br><span class="line">23</span><br><span class="line">24</span><br><span class="line">25</span><br><span class="line">26</span><br><span class="line">27</span><br><span class="line">28</span><br><span class="line">29</span><br><span class="line">30</span><br><span class="line">31</span><br><span class="line">32</span><br><span class="line">33</span><br><span class="line">34</span><br><span class="line">35</span><br><span class="line">36</span><br><span class="line">37</span><br><span class="line">38</span><br><span class="line">39</span><br><span class="line">40</span><br><span class="line">41</span><br><span class="line">42</span><br><span class="line">43</span><br><span class="line">44</span><br><span class="line">45</span><br><span class="line">46</span><br><span class="line">47</span><br><span class="line">48</span><br><span class="line">49</span><br><span class="line">50</span><br><span class="line">51</span><br><span class="line">52</span><br></pre></td><td class="code"><pre><span class="line"><span class="keyword">package</span> org.kys.Gaf.strategy;</span><br><span class="line"></span><br><span class="line"><span class="keyword">import</span> java.util.Random;</span><br><span class="line"></span><br><span class="line"><span class="comment">/**</span></span><br><span class="line"><span class="comment"> * 学习自身的</span></span><br><span class="line"><span class="comment"> */</span></span><br><span class="line"><span class="keyword">public</span> <span class="class"><span class="keyword">class</span> <span class="title">ProbStrategy</span> <span class="keyword">implements</span> <span class="title">Strategy</span></span>&#123;</span><br><span class="line"></span><br><span class="line">    <span class="keyword">private</span> <span class="keyword">int</span>[][] recording=&#123;</span><br><span class="line">            &#123;<span class="number">1</span>,<span class="number">1</span>,<span class="number">1</span>&#125;,&#123;<span class="number">1</span>,<span class="number">1</span>,<span class="number">1</span>&#125;,&#123;<span class="number">1</span>,<span class="number">1</span>,<span class="number">1</span>&#125;</span><br><span class="line">    &#125;;</span><br><span class="line"></span><br><span class="line">    <span class="keyword">private</span> <span class="keyword">int</span> preValue=<span class="number">1</span>;</span><br><span class="line">    <span class="keyword">private</span> <span class="keyword">int</span> currentValue=<span class="number">1</span>;</span><br><span class="line">    <span class="keyword">private</span> <span class="keyword">int</span> handvalue=<span class="number">1</span>;</span><br><span class="line">    <span class="meta">@Override</span></span><br><span class="line">    <span class="function"><span class="keyword">public</span> <span class="keyword">void</span> <span class="title">study</span><span class="params">(<span class="keyword">boolean</span> win)</span> </span>&#123;</span><br><span class="line">        <span class="keyword">if</span>(win)&#123;</span><br><span class="line">            recording[preValue][currentValue]++;</span><br><span class="line">        &#125;<span class="keyword">else</span>&#123;</span><br><span class="line">            recording[preValue][(currentValue+<span class="number">1</span>)%<span class="number">3</span>]++;</span><br><span class="line">            recording[preValue][(currentValue+<span class="number">2</span>)%<span class="number">3</span>]++;</span><br><span class="line">        &#125;</span><br><span class="line">    &#125;</span><br><span class="line"></span><br><span class="line">    <span class="keyword">private</span> <span class="keyword">static</span> Random random = <span class="keyword">new</span> Random();</span><br><span class="line">    </span><br><span class="line">    <span class="meta">@Override</span></span><br><span class="line">    <span class="function"><span class="keyword">public</span> Hand <span class="title">nextHand</span><span class="params">()</span> </span>&#123;</span><br><span class="line">        <span class="keyword">int</span> allSum = <span class="number">0</span>;</span><br><span class="line">        <span class="keyword">for</span> (<span class="keyword">int</span> a=<span class="number">0</span>;a&lt;<span class="number">3</span>;a++)&#123;</span><br><span class="line">            allSum+=recording[currentValue][a];</span><br><span class="line">        &#125;</span><br><span class="line">        <span class="keyword">int</span> ran = random.nextInt(allSum);</span><br><span class="line">        <span class="keyword">if</span>(ran&lt;recording[currentValue][<span class="number">0</span>])&#123;</span><br><span class="line">            handvalue=<span class="number">0</span>;</span><br><span class="line">        &#125;<span class="keyword">else</span> <span class="keyword">if</span>(ran&lt;recording[currentValue][<span class="number">0</span>]+recording[currentValue][<span class="number">1</span>])&#123;</span><br><span class="line">            handvalue=<span class="number">1</span>;</span><br><span class="line">        &#125;<span class="keyword">else</span> &#123;</span><br><span class="line">            handvalue=<span class="number">2</span>;</span><br><span class="line">        &#125;</span><br><span class="line">        preValue=currentValue;</span><br><span class="line">        currentValue=handvalue;</span><br><span class="line">        <span class="keyword">return</span> Hand.getHand(handvalue);</span><br><span class="line">    &#125;</span><br><span class="line"></span><br><span class="line">    <span class="meta">@Override</span></span><br><span class="line">    <span class="function"><span class="keyword">public</span> String <span class="title">getHandName</span><span class="params">()</span> </span>&#123;</span><br><span class="line">        <span class="keyword">return</span> Hand.getHand(handvalue).getName();</span><br><span class="line">    &#125;</span><br><span class="line">&#125;</span><br></pre></td></tr></table></figure>
<figure class="highlight java"><table><tr><td class="gutter"><pre><span class="line">1</span><br><span class="line">2</span><br><span class="line">3</span><br><span class="line">4</span><br><span class="line">5</span><br><span class="line">6</span><br><span class="line">7</span><br><span class="line">8</span><br><span class="line">9</span><br><span class="line">10</span><br><span class="line">11</span><br><span class="line">12</span><br><span class="line">13</span><br><span class="line">14</span><br><span class="line">15</span><br><span class="line">16</span><br><span class="line">17</span><br><span class="line">18</span><br><span class="line">19</span><br><span class="line">20</span><br><span class="line">21</span><br><span class="line">22</span><br><span class="line">23</span><br><span class="line">24</span><br><span class="line">25</span><br></pre></td><td class="code"><pre><span class="line"><span class="keyword">package</span> org.kys.Gaf.strategy;</span><br><span class="line"></span><br><span class="line"><span class="keyword">import</span> java.util.Random;</span><br><span class="line"></span><br><span class="line"><span class="keyword">public</span> <span class="class"><span class="keyword">class</span> <span class="title">SimpleStrategy</span> <span class="keyword">implements</span> <span class="title">Strategy</span> </span>&#123;</span><br><span class="line"></span><br><span class="line">    <span class="keyword">private</span> <span class="keyword">boolean</span> win = <span class="keyword">true</span>;</span><br><span class="line">    <span class="keyword">private</span> <span class="keyword">int</span> preHandValue = <span class="number">0</span>;</span><br><span class="line"></span><br><span class="line">    <span class="meta">@Override</span></span><br><span class="line">    <span class="function"><span class="keyword">public</span> <span class="keyword">void</span> <span class="title">study</span><span class="params">(<span class="keyword">boolean</span> win)</span> </span>&#123;</span><br><span class="line">        <span class="keyword">this</span>.win = win;</span><br><span class="line">    &#125;</span><br><span class="line"></span><br><span class="line">    <span class="meta">@Override</span></span><br><span class="line">    <span class="function"><span class="keyword">public</span> Hand <span class="title">nextHand</span><span class="params">()</span> </span>&#123;</span><br><span class="line">        <span class="keyword">this</span>.preHandValue = <span class="keyword">new</span> Random().nextInt(<span class="number">3</span>);</span><br><span class="line">        <span class="keyword">return</span> Hand.getHand(preHandValue);</span><br><span class="line">    &#125;</span><br><span class="line"></span><br><span class="line">    <span class="meta">@Override</span></span><br><span class="line">    <span class="function"><span class="keyword">public</span> String <span class="title">getHandName</span><span class="params">()</span> </span>&#123;</span><br><span class="line">        <span class="keyword">return</span> Hand.getHand(preHandValue).getName();</span><br><span class="line">    &#125;</span><br><span class="line">&#125;</span><br></pre></td></tr></table></figure>
<h4 id="策略的数据载体"><a href="#策略的数据载体" class="headerlink" title="策略的数据载体"></a>策略的数据载体</h4><figure class="highlight java"><table><tr><td class="gutter"><pre><span class="line">1</span><br><span class="line">2</span><br><span class="line">3</span><br><span class="line">4</span><br><span class="line">5</span><br><span class="line">6</span><br><span class="line">7</span><br><span class="line">8</span><br><span class="line">9</span><br><span class="line">10</span><br><span class="line">11</span><br><span class="line">12</span><br><span class="line">13</span><br><span class="line">14</span><br><span class="line">15</span><br><span class="line">16</span><br><span class="line">17</span><br><span class="line">18</span><br><span class="line">19</span><br><span class="line">20</span><br><span class="line">21</span><br><span class="line">22</span><br><span class="line">23</span><br><span class="line">24</span><br><span class="line">25</span><br><span class="line">26</span><br><span class="line">27</span><br><span class="line">28</span><br><span class="line">29</span><br><span class="line">30</span><br><span class="line">31</span><br><span class="line">32</span><br><span class="line">33</span><br><span class="line">34</span><br><span class="line">35</span><br><span class="line">36</span><br><span class="line">37</span><br><span class="line">38</span><br><span class="line">39</span><br><span class="line">40</span><br><span class="line">41</span><br><span class="line">42</span><br><span class="line">43</span><br><span class="line">44</span><br><span class="line">45</span><br><span class="line">46</span><br><span class="line">47</span><br><span class="line">48</span><br></pre></td><td class="code"><pre><span class="line"><span class="keyword">package</span> org.kys.Gaf.strategy;</span><br><span class="line"></span><br><span class="line"><span class="keyword">public</span> <span class="class"><span class="keyword">class</span> <span class="title">Hand</span> </span>&#123;</span><br><span class="line">    <span class="keyword">public</span> <span class="keyword">static</span> <span class="keyword">final</span> <span class="keyword">int</span> HANDVALUE_GUU = <span class="number">0</span>;</span><br><span class="line">    <span class="keyword">public</span> <span class="keyword">static</span> <span class="keyword">final</span> <span class="keyword">int</span> HANDVALUE_GHO = <span class="number">1</span>;</span><br><span class="line">    <span class="keyword">public</span> <span class="keyword">static</span> <span class="keyword">final</span> <span class="keyword">int</span> HANDVALUE_PAA = <span class="number">2</span>;</span><br><span class="line">    <span class="keyword">public</span> <span class="keyword">static</span> <span class="keyword">final</span> Hand[] head = &#123;</span><br><span class="line">            <span class="keyword">new</span> Hand(HANDVALUE_GUU),</span><br><span class="line">            <span class="keyword">new</span> Hand(HANDVALUE_GHO),</span><br><span class="line">            <span class="keyword">new</span> Hand(HANDVALUE_PAA)</span><br><span class="line">    &#125;;</span><br><span class="line"></span><br><span class="line">    <span class="keyword">public</span> <span class="keyword">static</span> <span class="keyword">final</span> <span class="keyword">int</span> WIN = <span class="number">1</span>;</span><br><span class="line">    <span class="keyword">public</span> <span class="keyword">static</span> <span class="keyword">final</span> <span class="keyword">int</span> LOST = <span class="number">2</span>;</span><br><span class="line">    <span class="keyword">public</span> <span class="keyword">static</span> <span class="keyword">final</span> <span class="keyword">int</span> EVEN = <span class="number">3</span>;</span><br><span class="line"></span><br><span class="line">    <span class="keyword">private</span> <span class="keyword">final</span> <span class="keyword">int</span> HANDVALUE;</span><br><span class="line"></span><br><span class="line">    <span class="keyword">private</span> String[] name=&#123;</span><br><span class="line">            <span class="string">"石头"</span>,<span class="string">"剪刀"</span>,<span class="string">"布"</span></span><br><span class="line">    &#125;;</span><br><span class="line"></span><br><span class="line">    <span class="function"><span class="keyword">public</span> String <span class="title">getName</span><span class="params">()</span></span>&#123;</span><br><span class="line">        <span class="keyword">return</span> name[<span class="keyword">this</span>.HANDVALUE];</span><br><span class="line">    &#125;</span><br><span class="line"></span><br><span class="line">    <span class="function"><span class="keyword">public</span> <span class="title">Hand</span><span class="params">(<span class="keyword">int</span> HANDVALUE)</span></span>&#123;</span><br><span class="line">      <span class="keyword">this</span>.HANDVALUE=HANDVALUE;</span><br><span class="line">    &#125;</span><br><span class="line"></span><br><span class="line">    <span class="function"><span class="keyword">public</span> <span class="keyword">static</span> Hand <span class="title">getHand</span><span class="params">(<span class="keyword">int</span> handValue)</span></span>&#123;</span><br><span class="line">        <span class="keyword">return</span> head[handValue];</span><br><span class="line">    &#125;</span><br><span class="line"></span><br><span class="line">    <span class="function"><span class="keyword">public</span> <span class="keyword">int</span> <span class="title">getHandValue</span><span class="params">()</span></span>&#123;</span><br><span class="line">        <span class="keyword">return</span> <span class="keyword">this</span>.HANDVALUE;</span><br><span class="line">    &#125;</span><br><span class="line"></span><br><span class="line">    <span class="function"><span class="keyword">public</span> <span class="keyword">int</span> <span class="title">iswin</span><span class="params">(Hand hand)</span></span>&#123;</span><br><span class="line">        <span class="keyword">if</span>(<span class="keyword">this</span>.HANDVALUE==hand.getHandValue())&#123;</span><br><span class="line">            <span class="keyword">return</span> EVEN;<span class="comment">//平</span></span><br><span class="line">        &#125;<span class="keyword">else</span> <span class="keyword">if</span>(<span class="keyword">this</span>.HANDVALUE+<span class="number">1</span>%<span class="number">3</span>==hand.getHandValue())&#123;</span><br><span class="line">            <span class="keyword">return</span> WIN;<span class="comment">//胜</span></span><br><span class="line">        &#125;<span class="keyword">else</span>&#123;</span><br><span class="line">            <span class="keyword">return</span> LOST;</span><br><span class="line">        &#125;</span><br><span class="line">    &#125;</span><br><span class="line">&#125;</span><br></pre></td></tr></table></figure>
<h4 id="主函数"><a href="#主函数" class="headerlink" title="主函数"></a>主函数</h4><figure class="highlight java"><table><tr><td class="gutter"><pre><span class="line">1</span><br><span class="line">2</span><br><span class="line">3</span><br><span class="line">4</span><br><span class="line">5</span><br><span class="line">6</span><br><span class="line">7</span><br><span class="line">8</span><br><span class="line">9</span><br><span class="line">10</span><br><span class="line">11</span><br><span class="line">12</span><br><span class="line">13</span><br><span class="line">14</span><br><span class="line">15</span><br><span class="line">16</span><br><span class="line">17</span><br><span class="line">18</span><br><span class="line">19</span><br><span class="line">20</span><br><span class="line">21</span><br><span class="line">22</span><br><span class="line">23</span><br><span class="line">24</span><br><span class="line">25</span><br><span class="line">26</span><br><span class="line">27</span><br><span class="line">28</span><br><span class="line">29</span><br><span class="line">30</span><br><span class="line">31</span><br><span class="line">32</span><br><span class="line">33</span><br><span class="line">34</span><br><span class="line">35</span><br><span class="line">36</span><br></pre></td><td class="code"><pre><span class="line"><span class="keyword">package</span> org.kys.Gaf.strategy;</span><br><span class="line"></span><br><span class="line"><span class="keyword">import</span> java.util.Random;</span><br><span class="line"></span><br><span class="line"><span class="keyword">public</span> <span class="class"><span class="keyword">class</span> <span class="title">Main</span> </span>&#123;</span><br><span class="line">    <span class="function"><span class="keyword">public</span> <span class="keyword">static</span> <span class="keyword">void</span> <span class="title">main</span><span class="params">(String[] args)</span> </span>&#123;</span><br><span class="line">        PlayerContext player1= <span class="keyword">new</span> PlayerContext(<span class="string">"tom"</span>,<span class="keyword">new</span> SimpleStrategy());</span><br><span class="line">        PlayerContext player2 = <span class="keyword">new</span> PlayerContext(<span class="string">"jack"</span>,<span class="keyword">new</span> SimpleStrategy());</span><br><span class="line">                <span class="comment">//new PlayerContext("jack",new ProbStrategy());</span></span><br><span class="line">        <span class="keyword">for</span>(<span class="keyword">int</span> a=<span class="number">0</span>;a&lt;<span class="number">10000</span>;a++)&#123;</span><br><span class="line">            Hand player1Hand = player1.nextHand();</span><br><span class="line">            Hand player2Hand = player2.nextHand();</span><br><span class="line">            <span class="keyword">if</span>(player1Hand.iswin(player2Hand)== Hand.WIN)&#123;</span><br><span class="line">                player1.win();</span><br><span class="line">                player2.lose();</span><br><span class="line">                System.out.println(<span class="string">"palyer1胜  tom:"</span>+player1.getHandName()+<span class="string">" | jack:"</span>+player2.getHandName());</span><br><span class="line">            &#125;<span class="keyword">else</span> <span class="keyword">if</span>(player1Hand.iswin(player2Hand)== Hand.LOST)&#123;</span><br><span class="line">                player1.lose();</span><br><span class="line">                player2.win();</span><br><span class="line">                System.out.println(<span class="string">"palyer2胜  tom:"</span>+player1.getHandName()+<span class="string">" | jack:"</span>+player2.getHandName());</span><br><span class="line">            &#125;<span class="keyword">else</span>&#123;</span><br><span class="line">                player1.even();</span><br><span class="line">                player2.even();</span><br><span class="line">                System.out.println(<span class="string">"player 平  tom:"</span>+player1.getHandName()+<span class="string">" | jack:"</span>+player2.getHandName());</span><br><span class="line">            &#125;</span><br><span class="line">        &#125;</span><br><span class="line">        System.out.println(<span class="string">"tom Win rate:"</span>+player1.winRate());</span><br><span class="line">        System.out.println(<span class="string">"jack Win rate:"</span>+player2.winRate());</span><br><span class="line">    &#125;</span><br><span class="line">    <span class="function"><span class="keyword">public</span> <span class="keyword">static</span> <span class="keyword">void</span> <span class="title">hhh2</span><span class="params">()</span></span>&#123;</span><br><span class="line">        Random random = <span class="keyword">new</span> Random();</span><br><span class="line">        <span class="keyword">for</span> (<span class="keyword">int</span> a=<span class="number">0</span>;a&lt;<span class="number">100</span>;a++)&#123;</span><br><span class="line">            System.out.println(random.nextInt(<span class="number">5</span>));</span><br><span class="line">        &#125;</span><br><span class="line">    &#125;</span><br><span class="line">&#125;</span><br></pre></td></tr></table></figure>

      
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              <div class="post-toc-content"><ol class="nav"><li class="nav-item nav-level-3"><a class="nav-link" href="#策略模式"><span class="nav-number">1.</span> <span class="nav-text">策略模式</span></a></li><li class="nav-item nav-level-3"><a class="nav-link" href="#策略模式类图"><span class="nav-number">2.</span> <span class="nav-text">策略模式类图</span></a></li><li class="nav-item nav-level-3"><a class="nav-link" href="#策略模式例子"><span class="nav-number">3.</span> <span class="nav-text">策略模式例子</span></a><ol class="nav-child"><li class="nav-item nav-level-4"><a class="nav-link" href="#context-策略的使用者"><span class="nav-number">3.1.</span> <span class="nav-text">context 策略的使用者</span></a></li><li class="nav-item nav-level-4"><a class="nav-link" href="#strategy-定义的策略接口"><span class="nav-number">3.2.</span> <span class="nav-text">strategy 定义的策略接口</span></a></li><li class="nav-item nav-level-4"><a class="nav-link" href="#策略接口的实现类"><span class="nav-number">3.3.</span> <span class="nav-text">策略接口的实现类</span></a></li><li class="nav-item nav-level-4"><a class="nav-link" href="#策略的数据载体"><span class="nav-number">3.4.</span> <span class="nav-text">策略的数据载体</span></a></li><li class="nav-item nav-level-4"><a class="nav-link" href="#主函数"><span class="nav-number">3.5.</span> <span class="nav-text">主函数</span></a></li></ol></li></ol></div>
            

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